Do I need to clear Byte[]?

Question

In my game user can choose multiple images from gallery and load them into game. I have created a function that get images from filepath. In that function I declare local variable byte[]. so after read file do i need to dispose that byte[] to freed memory. here is my code :

if (File.Exists(filePath)) 
{
    byte[] fileData = File.ReadAllBytes(filePath);
    Texture2D tex = new Texture2D(2, 2);
    tex.LoadImage(fileData);
}

Do I need to clear byte[] after texture is loaded from byte[] ???? User can choose any image file from gallery so there is no limit of filesize.

Answer 1

Short answer: No

byte[] is a managed resource. It will be fully cleaned up by the GC.

File related classes often involve unmanaged resources - usually the OS filehandles. But File.ReadAllBytes(string) looks like it follows my advise "create, use, dispose. All in the same piece of code, ideally using a using statement." So I expect not issues form it.

Networking and DB classes involve unamanged resources - usually network connections.

A lot of drawing related classes use unmanaged resources - primarily some unmanaged memory for performance.

But this is just a byte[]. As managed as any int[]. Note that you do not have a choice on the mater anyway as neither byte nor array implement IDisposeable. If you try to dispose if it, the compiler will wonder what you are talking about as there is no such function.